Jump to content

Sega Dreamcast Maintenance Guide: Revision history

Diff selection: Mark the radio buttons of the revisions to compare and hit enter or the button at the bottom.
Legend: (cur) = difference with latest revision, (prev) = difference with preceding revision, m = minor edit.

23 September 2026

  • curprev 04:4504:45, 23 September 2026 Josh talk contribs 13,026 bytes +189 Use the newly uploaded PNG extracts of Sega's block diagram and power supply schematic (PDF thumbnails do not render on this wiki). undo
  • curprev 04:4304:43, 23 September 2026 Josh talk contribs 12,837 bytes +4,449 CORRECTIONS from Sega's hosted block diagram and power supply schematic: the PSU revision table claiming VA2/VA2.1 had 'no 12V' and 'No GD-ROM drive' was false and is deleted - every Dreamcast has an internal mains PSU, a 12 V rail and a GD-ROM drive. Replaced the invented 'PSU output pin 1/2/3' table with Sega's real CN3 pinout (12V, GND, GND, GND, 5V, 3.3V) and added the on-board 2.0 V SH4 and 2.5 V HOLLY core rails. Deleted the unsourced 'MR2032' part number, the '900 ohm trimpot' limit, t... undo

6 June 2026

9 August 2025

9 May 2025

Retrieved from "https://wiki.retrotechcollection.com/Sega_Dreamcast_Maintenance_Guide"